Question: 5. If the sample size is 48 and the population standard deviation is 14.56 then the standard error is ? (Answer to two decimal places)

5. If the sample size is 48 and the population standard deviation is 14.56 then the standard error is ? (Answer to two decimal places)

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8. If there are 38 observations then how many degrees of freedom are there for the t distribution (for a sample mean)?

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9. If there are 49 observations then how many degrees of freedom are there for the t distribution (for a sample mean)?

_____________

20.If there are 56 observations in a sample, how many degrees of freedom are there? (The context here is for finding a t value when constructing a confidence interval or testing a hypothesis for the pupoulation mean).

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